CN112726386B

CN112726386B - Highway bridge vibration/noise reduction device

Info

Publication number: CN112726386B
Application number: CN202011554960.4A
Authority: CN
Inventors: 吕金明; 李玲玉; 丁志刚; 陈松州; 吴曼
Original assignee: Road and Bridge International Co Ltd; China Communication South Road and Bridge Co Ltd
Current assignee: Road and Bridge International Co Ltd; China Communication South Road and Bridge Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2022-06-10
Anticipated expiration: 2040-12-24
Also published as: CN112726386A

Abstract

The invention relates to a road bridge damping and noise reducing device, wherein a sound insulating belt is fixedly arranged at the top of a sound insulating plate in sliding connection on a supporting cover, one side, close to each other, of two bridge deck plates on the sound insulating plate is respectively contacted with two sides of the sound insulating belt, clamping covers are fixedly arranged at the bottoms of the bridge deck plates, supporting plates are fixedly arranged at the tops of two sides of the supporting cover, the bottoms of the two clamping covers are respectively contacted with the tops of the two supporting plates, clamping plates are fixedly arranged at the tops of one sides, close to each other, of two vertical plates in sliding connection on the supporting plates, one sides, close to each other, of the two clamping plates respectively extend into the two clamping covers and are respectively clamped with the two clamping covers, a transmission rod is in threaded connection with a rotating connecting screw rod on the inner wall of the bottom of the supporting cover, two ends of the transmission rod respectively extend to two sides of the supporting cover and are respectively in transmission connection with the two vertical plates, clamping of the two bridge deck plates can be realized simultaneously through rotating threaded columns, The installation to after installing the decking, can realize carrying out vibration/noise reduction to the decking.

Description

Highway bridge vibration/noise reduction device

Technical Field

The invention belongs to the technical field of bridges, and relates to a road bridge damping and noise reducing device.

Background

The highway is an important facility of the country and is also an indispensable traffic infrastructure for meeting the trip of people. With the continuous development of economic society, the requirements of people on highway trip are also continuously improved. The bridge is an important component of the highway, and the bridge expansion joints play a good role in connection. In particular, to meet the requirement of bridge deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge. When in use, the expansion joint is required to freely expand and contract in two directions parallel to and perpendicular to the axis of the bridge, and the expansion joint is firm and reliable, and when a vehicle runs, the vehicle is smooth without sudden jump and noise; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient.

In the prior art, the structural design of the highway bridge expansion joint is simple and extensive, structures such as rubber pads are arranged in the expansion joint to the utmost extent, noise transmission is reduced, and the actual use effect is not ideal. When a vehicle passes through an expansion joint of a highway bridge, the vehicle has a bumpy feeling, the damping effect is poor, the noise is large, and the noise reduction effect cannot be realized, so that the damping and noise reduction device for the highway bridge is provided for solving the problems.

Disclosure of Invention

In view of the above, the invention provides a road bridge expansion joint damping and noise reducing device, which solves the problems that the structural design of the road bridge expansion joint is simple and extensive, the structures such as rubber pads are arranged in the expansion joint completely, the noise transmission is reduced, the actual use effect is not ideal, and when a vehicle passes through the road bridge expansion joint, the vehicle has a bumpy feeling, the damping effect is not good, and the noise is large.

In order to achieve the purpose, the invention provides the following technical scheme: a shock absorption and noise reduction device for a highway bridge comprises a supporting cover, wherein a sound insulation plate is connected to the supporting cover in a sliding mode, a sound insulation belt is fixedly installed at the top of the sound insulation plate, two bridge deck plates are arranged on the sound insulation plate, one sides, close to each other, of the two bridge deck plates are respectively contacted with the two sides of the sound insulation belt, clamping covers are fixedly installed at the bottoms of the bridge deck plates, supporting plates are fixedly installed at the tops of the two sides of the supporting cover, the bottoms of the two clamping covers are respectively contacted with the tops of the two supporting plates, vertical plates are connected to the supporting plates in a sliding mode, clamping plates are fixedly installed at the tops of the sides, close to each other, of the two vertical plates, one sides, close to each other, of the two clamping plates respectively extend into the two clamping covers and are respectively clamped with the two clamping covers, a screw rod is rotatably connected to the inner wall of the bottom of the supporting cover and is in threaded connection with a transmission rod, and the two ends of the transmission rod respectively extend to the two sides of the supporting cover and are respectively in transmission connection with the two vertical plates, and the transfer line is connected with the inner wall sliding of supporting the cover, it is connected with the screw thread post to rotate on one side inner wall of supporting the cover, and the one end of screw thread post extends to the outside of supporting the cover, the screw thread post is connected with screw rod transmission.

The beneficial effect of this basic scheme lies in: the invention can realize the clamping and the installation of the two bridge decks simultaneously by rotating the threaded columns, can realize the shock absorption of the bridge decks after the bridge decks are installed, and can effectively block the sound transmission by using the sound insulation plates and the sound insulation belts, thereby effectively reducing the noise.

Further, the bottom sliding connection who has the backup pad of backup pad has the connecting rod, and the one end and the riser fixed connection of connecting rod, the other end fixed mounting of connecting rod has the down tube that is the slope setting, and one side bottom fixed connection of one end of down tube and riser, the slip cap is equipped with the lantern ring on the down tube, and two lantern rings respectively with the both ends fixed connection of transfer line, beneficial effect: the two supporting plates can be driven to move transversely when the transmission rod moves longitudinally.

Further, bottom one side fixed mounting of backup pad has the sliding ring, and the connecting rod run through the sliding ring and with the inner wall sliding connection of sliding ring, the cover is equipped with the reset spring who is located sliding ring one side on the connecting rod, and reset spring's both ends respectively with the one end of connecting rod and the one end fixed connection of sliding ring, beneficial effect: utilize sliding ring and connecting rod can carry out the lateral sliding spacing to the backup pad to under reset spring's effect, can conveniently drive the backup pad and move to keeping away from support cover one side.

Further, the bottom symmetry fixed mounting of acoustic celotex board has two bracing pieces, and the bottom of two bracing pieces all runs through the transfer line and all extends to the below of transfer line, two bracing pieces all with transfer line sliding connection, the symmetry is rotated on the bottom inner wall of support cover and is connected with two screwed pipes, the screw rod is connected with two screwed pipe transmissions respectively, threaded connection has the buffering subassembly on the screwed pipe, and two buffering subassemblies contact beneficial effect with two bracing pieces respectively: two support rods can be utilized to longitudinally slide and limit the sound insulation board.

Further, the buffering subassembly includes threaded connection at the intraductal lead screw of screwed joint, and the top of lead screw extends to the top and the sliding connection of screwed pipe has the carriage, two carriages respectively with the both sides inner wall sliding connection who supports the cover, the top fixed mounting of carriage has the bearing board, and the bottom of two bracing pieces contacts beneficial effect with the top of two bearing boards respectively: it is convenient for the baffle to have a space for displacement downward.

Further, the top symmetry fixed mounting of lead screw has two supporting spring, and the top of two springs all with the bottom fixed connection of bearing board, beneficial effect: the acoustic baffle can be elastically supported.

Further, fixed mounting has the ring gear on the screw rod, and fixed cover is equipped with rotating gear on the screwed pipe, the ring gear meshes with two rotating gear mutually respectively, beneficial effect: the two threaded pipes can be driven to synchronously rotate through the matching of the gear ring and the two rotating gears.

Further, fixed cover is equipped with the drive gear that is located the ring gear top on the screw rod, and threaded connection has the movable plate that is located the support cover on the screw thread post, movable plate and the inner wall sliding connection who supports the cover, one side fixed mounting of movable plate has the rack, the rack meshes beneficial effect with drive gear mutually: can conveniently drive the screw rod and rotate.

Further, one side fixed mounting of supporting housing has the locating plate, and swing joint has positioning bolt on the locating plate, positioning bolt and screw thread post threaded connection, beneficial effect: the threaded column can be conveniently braked.

Further, the cover is equipped with the chuck that is located the support cover outside on the screw thread post, and threaded groove has been seted up to one side of chuck, positioning bolt's one end extend to in the threaded groove and with the inner wall activity threaded connection of threaded groove, beneficial effect: the usable chuck conveniently clamps with positioning bolt.

The invention has the beneficial effects that:

1. the invention discloses a road bridge damping and noise reducing device, wherein two bridge decks are placed on a sound insulating board and are in contact with a sound insulating belt, the sound insulating board can move downwards depending on the total amount of the bridge decks until two clamping covers are in contact with two supporting plates respectively, then a movable plate is driven by a rotatable threaded column to move transversely, a rack can move transversely, a screw rod can be driven by a transmission gear to rotate, when the screw rod rotates, two threaded pipes can simultaneously rotate through two rotating gears, so that two screw rods can move upwards until two bearing plates are in close contact with two supporting rods respectively, and the sound insulating board can be elastically supported;

when the screw rod rotates, the transmission rod can be driven to move downwards, when the transmission rod moves downwards, the two transmission sleeve rings can move downwards, the two movable plates can be driven to be close to each other through the two inclined rods at the moment, until the two clamping plates respectively enter the two clamping covers, and the two bridge decks can be positioned and clamped.

2. According to the highway bridge damping and noise reducing device disclosed by the invention, the two bridge decks can be clamped and installed simultaneously by rotating the threaded columns, the bridge decks can be damped after the bridge decks are installed, and meanwhile, sound transmission can be effectively blocked by using the sound insulation plates and the sound insulation belts, so that noise can be effectively reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of the shock absorbing and noise reducing device for road bridges of the present invention;

FIG. 2 is a main sectional view of the shock absorbing and noise reducing device for road bridges of the present invention;

FIG. 3 is a schematic view of the structure of part A of FIG. 2 according to the present invention;

FIG. 4 is a schematic structural view of part B of FIG. 2 according to the present invention;

FIG. 5 is a top view of a moving plate and screw transmission connection structure of the road bridge damping and noise reducing device of the present invention.

Reference numerals: the device comprises a support cover 1, a sound insulation plate 2, a sound insulation belt 3, a bridge deck plate 4, a clamping cover 5, a support plate 6, a vertical plate 7, a transmission rod 8, a diagonal rod 9, a lantern ring 10, a clamping plate 11, a screw rod 12, a sliding ring 13, a connecting rod 14, a return spring 15, a support rod 16, a transmission gear 17, a movable plate 18, a toothed ring 19, a threaded pipe 20, a rotating gear 21, a screw rod 22, a sliding frame 23, a sliding plate 24, a support spring 25, a rack 26, a threaded column 27, a chuck 28, a positioning plate 29 and a positioning bolt 30.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

1-5, including supporting cover 1, sliding connection has acoustic celotex board 2 on supporting cover 1, the top fixed mounting of acoustic celotex board 2 has sound insulation area 3, be equipped with two decking 4 on the acoustic celotex board 2, and the one side that two decking 4 are close to each other contacts with the both sides of sound insulation area 3 respectively, the bottom fixed mounting of decking 4 has card cover 5, and the equal fixed mounting in both sides top of supporting cover 1 has backup pad 6, the bottom of two card covers 5 contacts with the top of two backup pads 6 respectively, sliding connection has riser 7 on backup pad 6, and the equal fixed mounting in one side top that two risers 7 are close to each other has cardboard 11, the one side that two cardboard 11 are close to each other extends to respectively in two card covers 5 and clamps with two card covers 5 respectively.

The inner wall of the bottom of the support cover 1 is rotatably connected with a screw 12, the screw 12 is in threaded connection with a transmission rod 8, two ends of the transmission rod 8 respectively extend to two sides of the support cover 1 and are respectively in transmission connection with two vertical plates 7, the transmission rod 8 is in sliding connection with the inner wall of the support cover 1, the inner wall of one side of the support cover 1 is rotatably connected with a threaded column 27, one end of the threaded column 27 extends to the outer side of the support cover 1, the threaded column 27 is in transmission connection with the screw 12, the bottom of the support plate 6 is in sliding connection with the bottom of the support plate 6 and is connected with a connecting rod 14, one end of the connecting rod 14 is fixedly connected with the vertical plates 7, the other end of the connecting rod 14 is fixedly provided with an inclined rod 9 which is obliquely arranged, one end of the inclined rod 9 is fixedly connected with the bottom of one side of the vertical plates 7, a lantern ring 10 is sleeved on the inclined rod 9 in a sliding way, and the two lantern rings 10 are respectively and fixedly connected with two ends of the transmission rod 8, when transfer line 8 carries out longitudinal movement, can drive two riser 7 lateral shifting, bottom one side fixed mounting of backup pad 6 has sliding ring 13, and connecting rod 14 run through sliding ring 13 and with sliding ring 13's inner wall sliding connection, the cover is equipped with reset spring 15 that is located sliding ring 13 one side on the connecting rod 14, and reset spring 15's both ends respectively with connecting rod 14's one end and sliding ring 13's one end fixed connection, it is spacing to utilize sliding ring 13 and connecting rod 14 to carry out lateral shifting to riser 7, and under reset spring 15's effect, can conveniently drive riser 7 and move to keeping away from support cover 1 one side.

In this embodiment, two support rods 16 are symmetrically and fixedly installed at the bottom of the baffle 2, the bottom ends of the two support rods 16 penetrate through the transmission rod 8 and extend to the lower part of the transmission rod 8, the two support rods 16 are slidably connected with the transmission rod 8, two threaded pipes 20 are symmetrically and rotatably connected to the inner wall of the bottom of the support cover 1, the screw 12 is in transmission connection with the two threaded pipes 20 respectively, a buffer assembly is in threaded connection with the threaded pipes 20 and contacts with the two support rods 16 respectively, the baffle 2 can be longitudinally limited by the two support rods 16, the buffer assembly comprises a screw rod 22 in the threaded pipes 20, the top end of the screw rod 22 extends to the upper part of the threaded pipes 20 and is slidably connected with a sliding frame 23, the two sliding frames 23 are slidably connected with the inner walls of the two sides of the support cover 1 respectively, and a support plate is fixedly installed at the top of the sliding frame 23, and the bottom ends of the two support rods 16 are respectively contacted with the tops of the two support plates, so that the buffer assembly can facilitate the sound insulation plate 2 to have a space for downward displacement.

Two supporting springs 25 are symmetrically and fixedly installed at the top end of the screw rod 22, the top ends of the two springs 25 are fixedly connected with the bottom of the bearing plate, the supporting springs 25 can elastically support the sound insulation plate 2, a toothed ring 19 is fixedly installed on the screw rod 12, a rotating gear 21 is fixedly sleeved on the threaded pipe 20, the toothed ring 19 is respectively meshed with the two rotating gears 21, the two threaded pipes 20 can be driven to synchronously rotate through the matching of the toothed ring 19 and the two rotating gears 21, a transmission gear 17 positioned above the toothed ring 19 is fixedly sleeved on the screw rod 12, a moving plate 18 positioned in the supporting cover 1 is in threaded connection with the threaded column 27, the moving plate 18 is in sliding connection with the inner wall of the supporting cover 1, a rack 26 is fixedly installed at one side of the moving plate 18, the rack 26 is meshed with the transmission gear 17, the screw rod 12 can be conveniently driven to rotate, a positioning plate 29 is fixedly installed at one side of the supporting cover 1, and swing joint has positioning bolt 30 on the locating plate 29, and positioning bolt 30 and screw thread post 27 threaded connection can conveniently brake screw thread post 27, and the cover is equipped with the chuck 28 that is located the support housing 1 outside on the screw thread post 27, and one side of chuck 28 has seted up the thread groove, and positioning bolt 30's one end extends to the thread groove and with the inner wall swing thread of thread groove and be connected, and usable chuck 28 conveniently clamps with positioning bolt 30.

The application method of the road bridge damping and noise reducing device comprises the following steps of placing two bridge decks 4 on a sound insulation board 2, enabling the two bridge decks 4 to be in contact with a sound insulation belt 3, enabling the sound insulation board 2 to move downwards depending on the total amount of the bridge decks 4 until two clamping covers 5 are in contact with two supporting plates 6 respectively, then driving a moving plate 18 to move transversely by a rotatable threaded column 27, enabling a rack 26 to move transversely at the time, enabling a screw 12 to rotate by a transmission gear 17, enabling two threaded pipes 20 to rotate simultaneously by two rotating gears 21 when the screw 12 rotates, enabling two screw rods 22 to move upwards until two supporting plates are in close contact with two supporting rods 16 respectively, elastically supporting the sound insulation board 2, and supporting springs 25 arranged below the supporting plates, the supporting spring 25 can be used for bouncing the sound insulation board 2, the screw 12 can drive the transmission rod 8 to move downwards when rotating, the two transmission ring rings 10 can move downwards when the transmission rod 8 moves downwards, the two movable plates 17 can be driven to approach each other through the two inclined rods 9 at the same time until the two clamping plates 11 respectively enter the two clamping covers 5, and then the two bridge decks 4 can be positioned and clamped, when the bridge deck 4 is clamped, the positioning bolt 30 can be pushed to enable the positioning bolt 30 to enter the thread groove, then the positioning bolt 30 can be in threaded connection with the thread groove by rotating the bolt 30, so that the threaded column 27 can be braked, the two bridge decks 4 can be further stably clamped, and the bridge deck 4 can be damped after being installed, meanwhile, the sound insulation board 2 and the sound insulation belt 3 can effectively obstruct the transmission of sound, so that the noise can be effectively reduced.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The utility model provides a public road bridge roof beam vibration/noise reduction device, is including supporting cover (1), its characterized in that, sliding connection has acoustic celotex board (2) on supporting cover (1), and the top fixed mounting of acoustic celotex board (2) has sound insulation area (3), be equipped with two decking (4) on acoustic celotex board (2), and one side that two decking (4) are close to each other contacts with the both sides of sound insulation area (3) respectively, the bottom fixed mounting of decking (4) has card cover (5), and the equal fixed mounting in both sides top of supporting cover (1) has backup pad (6), and the bottom of two card covers (5) contacts with the top of two backup pads (6) respectively, sliding connection has riser (7) on backup pad (6), and the equal fixed mounting in one side top that two risers (7) are close to each other has cardboard (11), and one side that two cardboard (11) are close to each other extends to in two card covers (5) respectively and blocks the dress with two card covers (5) respectively mutually The inner wall of the bottom of the support cover (1) is rotatably connected with a screw rod (12), the screw rod (12) is in threaded connection with a transmission rod (8), two ends of the transmission rod (8) respectively extend to two sides of the support cover (1) and are in transmission connection with two vertical plates (7) respectively, the transmission rod (8) is in sliding connection with the inner wall of the support cover (1), the inner wall of one side of the support cover (1) is rotatably connected with a threaded column (27), one end of the threaded column (27) extends to the outer side of the support cover (1), and the threaded column (27) is in transmission connection with the screw rod (12);

the bottom of the supporting plate (6) is connected with a connecting rod (14) in a sliding mode, one end of the connecting rod (14) is fixedly connected with the vertical plate (7), the other end of the connecting rod (14) is fixedly provided with an inclined rod (9) which is arranged in an inclined mode, one end of the inclined rod (9) is fixedly connected with the bottom of one side of the vertical plate (7), a lantern ring (10) is sleeved on the inclined rod (9) in a sliding mode, and the two lantern rings (10) are fixedly connected with the two ends of the transmission rod (8) respectively;

a sliding ring (13) is fixedly mounted on one side of the bottom of the supporting plate (6), a connecting rod (14) penetrates through the sliding ring (13) and is in sliding connection with the inner wall of the sliding ring (13), a return spring (15) located on one side of the sliding ring (13) is sleeved on the connecting rod (14), and two ends of the return spring (15) are fixedly connected with one end of the connecting rod (14) and one end of the sliding ring (13) respectively;

the bottom of the sound insulation board (2) is symmetrically and fixedly provided with two support rods (16), the bottom ends of the two support rods (16) penetrate through the transmission rod (8) and extend to the lower part of the transmission rod (8), the two support rods (16) are in sliding connection with the transmission rod (8), the inner wall of the bottom of the support cover (1) is symmetrically and rotatably connected with two threaded pipes (20), the screw (12) is in transmission connection with the two threaded pipes (20) respectively, the threaded pipes (20) are in threaded connection with buffer components, and the two buffer components are in contact with the two support rods (16) respectively;

the buffering subassembly includes lead screw (22) of threaded connection in screwed pipe (20), and the top of lead screw (22) extends to the top and sliding connection of screwed pipe (20) has carriage (23), two carriages (23) respectively with the both sides inner wall sliding connection who supports cover (1), the top fixed mounting of carriage (23) has the bearing board, and the bottom of two bracing pieces (16) contacts with the top of two bearing boards respectively.

2. A road bridge damping and noise reducing device according to claim 1, wherein two supporting springs (25) are symmetrically and fixedly installed at the top ends of the screw rods (22), and the top ends of the two supporting springs (25) are fixedly connected with the bottom of the bearing plate.

3. A road bridge damping and noise reducing device according to claim 1, wherein a toothed ring (19) is fixedly mounted on the screw rod (12), and a rotating gear (21) is fixedly mounted on the threaded pipe (20), and the toothed ring (19) is respectively engaged with the two rotating gears (21).

4. A road bridge damping and noise reducing device according to claim 3, wherein the screw rod (12) is fixedly sleeved with a transmission gear (17) above the toothed ring (19), the threaded column (27) is in threaded connection with a moving plate (18) located in the support cover (1), the moving plate (18) is in sliding connection with the inner wall of the support cover (1), one side of the moving plate (18) is fixedly provided with a rack (26), and the rack (26) is meshed with the transmission gear (17).

5. A road bridge shock-absorbing and noise-reducing device as claimed in claim 1, wherein a positioning plate (29) is fixedly mounted on one side of the supporting cover (1), a positioning bolt (30) is movably connected to the positioning plate (29), and the positioning bolt (30) is in threaded connection with the threaded column (27).

6. A road and bridge vibration and noise reduction device as claimed in claim 5, wherein the threaded column (27) is sleeved with a chuck (28) located outside the support cover (1), one side of the chuck (28) is provided with a threaded groove, and one end of the positioning bolt (30) extends into the threaded groove and is movably connected with the inner wall of the threaded groove in a threaded manner.